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Machine Learning and Statistical Analysis in Gro.ndwater Mo.ito.ing fo. To.al Disso.ved So.ids Assessment in Winkler Co.nty, Texas

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j.urnal o. Geo.cience and Enviro.ment Pro.ectio. 2024年第6期12卷 1-29页

作者： Azuka I. Udeh o.ayamen j. Imarhiagbe Erepamo.j. o.ietimi Abdulqudus o. Mo.ammed o.uwato.ilo.a Andre-o.ayanj. Department o. Geo.cience University of Texas Permian Basin Odessa USA Department o. Geo.o.y University of Pretoria Pretoria South Africa Department o. Geo.o.y University of Benin Benin Nigeria

This research aims to.develo. reliable mo.els using machine learning algo.ithms to.precisely predict To.al Disso.ved So.ids (TDS) in wells o. the Permian basin, Winkler Co.nty, Texas. The data fo. this co.tributio. was o.tained fro. the Texas Water Develo.ment Bo.rd website (TWDB). Five hundred and ninety-three samples were o.tained fro. two.hundred and ninety-eight wells in the study area. The wells were drilled at different co.nty lo.atio.s into.five aquifers, including Peco. Valley, Do.kum, Capitan Reef, Edward Trinity, and Rustler aquifers. A to.al o. fo.rteen different water quality parameters were used, and they include Po.ential hydro.en (pH), So.ium, Chlo.ide, Magnesium, Fluo.ide, TDS, Specific Co.ductance, Nitrate, To.al Hardness, Calcium, Temperature, Well Depth, Sulphate, and Bicarbo.ates. Fo.r machine learning regressio. algo.ithms were develo.ed to.get a go.d mo.el to.help predict TDS in this area: Decisio. Tree regressio., Linear regressio., Suppo.t Vecto. Regressio., and K-nearest neighbo.. The study sho.ed that the Decisio. Tree pro.uced the best mo.el with attributes like the co.fficient o. determinatio. R2 = 1.00 and 0.96 fo. the training and testing, respectively. It also.pro.uced the lo.est sco.e o. mean abso.ute erro. MAE = 0.00 and 0.04 fo. training and testing, respectively. This study will reduce the co.t o. o.taining different water quality parameters in TDS determinatio. by leveraging machine learning to.use o.ly the parameters co.tributing to.TDS, thereby helping researchers o.tain o.ly the parameters necessary fo. TDS predictio.. It will also.help the autho.ities enact po.icies that will impro.e the water quality in areas where drinking water availability is a challenge by pro.iding impo.tant info.matio. fo. mo.ito.ing and assessing gro.ndwater quality.

关键词： Machine Learning Regressio. Aquifers Winkler Co.nty Sinkho.es

A deco.po.itio. o. light’s spin angular mo.entum density

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Light(Science & Applicatio.s) 2024年第8期13卷 1578-1589页

作者： Alex j.Verno. Sebastian Go.at Claire Rigo.zzo.Eugene A.Lim Francisco.j.Ro.ríguez-Fo.tuño Department o. Physics King’s College LondonStrandLondon WC2R 2LSUK Lo.do. Centre fo. Nano.echno.o.y LondonUK

Light carries intrinsic spin angular mo.entum(SAM)when the electric o. magnetic field vecto. ro.ates o.er time.A familiar vecto. equatio. calculates the directio. o. light’s SAM density using the right-hand rule with reference to.the electric and magnetic po.arisatio. *** Maxwell’s equatio.s,this vecto. equatio. can be deco.po.ed into.a sum o. two.distinct terms,akin to.the well-kno.n Po.nting vecto. deco.po.itio. into.o.bital and spin *** present the first general study o. this spin deco.po.itio.,sho.ing that the two.terms,which we call cano.ical and Po.nting spin,are chiral analo.ies to.the cano.ical and spin mo.enta o. light in its interactio. with *** cano.ical mo.entum,cano.ical spin is directly *** cano.ical and Po.nting spin inco.po.ate spatial variatio. o. the electric and magnetic fields and are influenced by o.tical *** deco.po.itio. allo.s us to.sho. that a linearly po.arised vo.tex beam,which has no.to.al SAM,can nevertheless exert lo.gitudinal chiral pressure due to.equal and o.po.ite cano.ical and Po.nting spins.

关键词： cano.ical mo.entum angular

An Assessment o. Saltwater Intrusio. in Co.stal Regio.s o. Lago., Nigeria

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j.urnal o. Geo.cience and Enviro.ment Pro.ectio. 2024年第1期12卷 93-119页

作者： o.unadike Callistus Akerele D. Daniel Abio.un o. Pelumi o.isah So.to.e o.o.ede Kunle o.unadike S. Echezo.a o.unadike j. Chinenye Department o. Geo.ciences Freiberg University of Mining and Technology Freiberg Germany Department o. Co.structio. Management University of Washington Seattle USA Department o. Civil Engineering Morgen State University Baltimore USA Department o. Geo.raphy University of Lagos Lagos Nigeria Department o. Bio.hemistry Anambra State University Uli Nigeria Department o. Geo.o.y Anambra State University Uli Nigeria

This paper explains vario.s facto.s that co.tribute to.saltwater intrusio., including o.erexplo.tatio. o. freshwater reso.rces and climate change as well as the different techniques essential fo. effective saltwater intrusio. management. The impact o. saltwater intrusio. alo.g co.stal regio.s and its impact o. the enviro.ment, hydro.eo.o.y and gro.ndwater co.taminatio.. It suggests po.ential so.utio.s to.mitigate the impact o. saltwater intrusio., including effective water management and techniques fo. managing SWI. The applicatio. o. A.I (assessment index) serves as a guideline to.co.rectly identify wells with SWI ranging fro. no.intrusio., slight intrusio. and stro.g intrusio.. The challenges o. saltwater intrusio. in Lago. and the salinizatio. o. wells were investigated using the hydro.chemical parameters. The study identifies fo.r wells (“AA”, “CMS”, “o.A” and “VIL”) as having high electric co.ductivities, indicating saline water intrusio., while o.her wells (“EBM”, “IKj. and “IKo.) with lo.er electric co.ductivities, indicate little o. no.salt-water intrusio., and “Aj. well sho.s slight intrusio.. The elevatio. o. the wells also.played a vital ro.e in the SWI acro.s co.stal regio.s o. Lago.. The study reco.mends co.tinuo.s mo.ito.ing o. co.stal wells to.help sustain and reduce saline intrusio.. The findings o. the study are impo.tant fo. po.icymakers, researchers, and practitio.ers who.are interested in addressing the challenges o. saltwater intrusio. alo.g co.stal regio.s. We assessed the SWI acro.s the eight (8) wells using the Assessment Index to.identify wells with SWI. Wells in “CMS” and “VIL” has stro.g intrusio.s. A pro.o.ed classificatio. system based o. specific io. ratio. catego.izes water quality fro. go.d (+) to.highly (-) co.taminated (refer to.Table 4). These findings undersco.e the need fo. attentio. and effective management strategies to.address gro.ndwater unsuitability fo. vario.s purpo.es.

关键词： Hydro.Chemical Data Analysis Saline Incursio. Aquifer Sustainability and Management Co.stal Regio.s Gro.nd Water Intrusio.

Euro.ium reco.ery pro.ess by means o. po.ymeric nano.articles functio.alized with acrylic acid,curcumin and fumaramide

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j.urnal o. Rare Earths 2024年第10期42卷 1950-1959页

作者： P.A.Martínez-Mo.to.a j.M del Río.A.de j.Mo.ales-Ramirez M.Co.ea Escuela Superio. de Ingeniería Química e Industrias Extractivas ESIQIE-IPNDepartamento de Ingeniería Metalúrgica UPALM S/N Col.LindavistaGustao A.MaderoCDMXC.P.07738Mexico Escuela Superio. de Ingenieria Química e Industrias Extractivas ESIQIE-IPNLaboratorio de Investigación en Polímeros y NanomaterialesUPALM S/N Col.LindavistaGustavoA.MaderoCDMXC.P.07738Mexico Centra de Investigación e Inno.ación Tecno.ógica CIITEC-IPNCda.de CECATIs/nSanta CatarinaAzcapotzalcoC.P.02250CDMXMexico

Po.ymeric nano.articles o. po.y(methyl methacrylate)were o.tained by emulsio. po.ymerizatio. techniques in a pro.e ss o. two.*** particles were functio.alized with acrylic acid,curcumin,and fumaramide and three series o. po.ymeric particles were *** inco.po.atio. o. functio.al gro.ps was co.firmed by Fo.rier transfo.m-infrared spectro.o.o.y(FT-IR)and ultravio.et-visible(UV-Vis)*** spherical mo.pho.o.y o. particles with an average diameter o. 100 nm was o.served by scartning electro. micro.co.y(SEM).The po.ymeric materials were used fo. reco.ery o.[Eu]fro. synthetic *** nano.articles sho. excellent chelatio. capacity to.trap rare-earth io.s,because they reco.er mo.e than 85%o.[Eu]at pH o. *** images o. SEM after extractio. pro.ess sho. arrays between particles with larger average particle sizes to.1.5 *** additio.,the particles have a go.d stripping capacity,exceeding 50%o. it,maintaining their ho.o.eneity in mo.pho.o.y and go.d stability in dispersio. fo. the reco.ery and stripping pro.esses.A pseudo.seco.d mo.el o.der is o.tained fo. the extractio. and stripping pro.esses while the best results o. stripping pro.ess are o.tained at pH o. 6.

关键词： [Eu]reco.ery Chelating effect Extractio. pro.ess Stripping pro.ess Emulsio. po.ymerizatio. Rare earths

Message Verificatio. Pro.o.o. Based o. Bilinear Pairings and Elliptic Curves fo. Enhanced Security in Vehicular Ad Ho. Netwo.ks

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Co.puters, Materials and Co.tinua 2024年第1期81卷 1029-1057页

作者： Nyangaresi V.o. Ghaib A.A. j.sim H.M. Abdulj.bbar Z.A. Ma j. Al Sibahee M.A. Aldarwish A.j.Y. Ali A.H. Neamah H.A. Department o. Co.puter Science and So.tware Engineering Jaramogi Oginga Odinga University of Science and Technology Bondo 40601 Kenya Department o. Applied Electro.ics Saveetha School of Engineering SIMATS Tamilnadu Chennai 602105 India Info.matio. Techno.o.y Department Management Technical College Southern Technical University Basrah 61004 Iraq Department o. Co.puter Science College of Education for Pure Sciences University of Basrah Basrah 61004 Iraq Co.lege o. Big Data and Internet Shenzhen Technology University Shenzhen 518118 China Huazho.g University o. Science and Techno.o.y Shenzhen Institute Shenzhen 518000 China Natio.al Engineering Labo.ato.y fo. Big Data System Co.puting Techno.o.y Shenzhen University Shenzhen 518060 China Co.puter Techno.o.y Engineering Department Iraq University College Basrah 61004 Iraq Department o. Mathematics College of Education for Pure Sciences University of Basrah Basrah 61004 Iraq Institute o. Mathematics University of Debrecen Debrecen H-4002 Hungary Department o. Electrical Engineering and Mechatro.ics Faculty of Engineering University of Debrecen Debrecen 4028 Hungary

Vehicular ad ho. netwo.ks (VANETs) pro.ide intelligent navigatio. and efficient ro.te management, resulting in time savings and co.t reductio.s in the transpo.tatio. secto.. Ho.ever, the exchange o. beaco.s and messages o.er public channels amo.g vehicles and ro.dside units renders these netwo.ks vulnerable to.numero.s attacks and privacy vio.atio.s. To.address these challenges, several privacy and security preservatio. pro.o.o.s based o. blo.kchain and public key crypto.raphy have been pro.o.ed recently. Ho.ever, mo.t o. these schemes are limited by a lo.g executio. time and massive co.municatio. co.ts, which make them inefficient fo. o.-bo.rd units (o.Us).Additio.ally, so.e o. them are still susceptible to.any *** such, this study presents a no.el pro.o.o. based o. the fusio. o. elliptic curve crypto.raphy (ECC) and bilinear pairing (BP) o.eratio.s. The fo.mal security analysis is acco.plished using the Burro.s-Abadi-Needham(BAN) lo.ic, demo.strating that o.r scheme is verifiably secure. The pro.o.ed scheme's info.mal security assessment also.sho.s that it pro.ides salient security features, such as no.-repudiatio., ano.ymity, and unlinkability. Mo.eo.er, the scheme is sho.n to.be resilient against attacks, such as packet replays, fo.geries,message falsificatio.s, and imperso.atio.s. Fro.the perfo.mance perspective, this pro.o.o. yields a 37.88% reductio. in co.municatio. o.erheads and a 44.44% impro.ement in the suppo.ted security features. Therefo.e, the pro.o.ed scheme can be deplo.ed in VANETs to.pro.ide ro.ust security at lo. o.erheads. © 2024 The Autho.s. Published by Tech Science Press.

关键词： Attacks bilinear elliptic curve crypto.raphy (ECC) privacy security vehicular ad ho. netwo.k (VANET)

Edito.ial fo. the Special Issue o. Emerging Techno.o.y and Advanced Applicatio. o. No.destructive Detectio. fo. Po.er Equipment

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Chinese j.urnal o. Electrical Engineering 2024年第1期10卷 1-2页

作者： Li j. Mei H. Li S. Tianj.n University China Tsinghua Shenzhen Internatio.al Graduate Scho.l China Lanzho. j.ao.o.g University China

The rapid develo.ment o. clean and renewable energy techno.o.ies represented by wind and so.ar energy,as well as the co.tinuo.s gro.th o. lo.d demand,have put fo.ward higher requirements fo. the safe o.eratio. o. the po.er *** perfo.mance o. po.er equipment based o. traditio.al dielectric materials is o.ten limited by vario.s defects generated during mo.ding,transpo.tatio.,assembly,and o.eratio.,which canno. meet the reliability requirements o. po.er systems in the new *** detectio. is an essential technical metho. in industrial develo.ment,which can detect and evaluate the defect and damage status o. in-service equipment,key co.po.ents,and materials witho.t damaging the o.j.ct.

关键词： service Applicatio. o.eratio.

Demand-Respo.sive Transpo.tatio. Vehicle Ro.ting o.timizatio. Based o. Two.Stage Metho.

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Co.puters, Materials and Co.tinua 2024年第1期81卷 443-469页

作者： Ma j. Liu H. Chen L. Scho.l o. Railway Transpo.tatio. Shanghai Institute of Technology Shanghai 201418 China

Demand-respo.sive transpo.tatio. (DRT) is a flexible passenger service designed to.enhance ro.d efficiency, reduce peak-ho.r traffic, and bo.st passenger satisfactio.. Ho.ever, existing o.timizatio. metho.s fo. initial passenger requests fall sho.t in addressing real-time passenger needs. Co.sequently, there is a need to.develo. real-time DRT ro.te o.timizatio. metho.s that integrate bo.h initial and real-time requests. This paper presents a two.stage, multi-o.j.ctive o.timizatio. mo.el fo. DRT vehicle scheduling. The first stage invo.ves an initial scheduling mo.el aimed at minimizing vehicle co.figuratio., and o.eratio.al, and Co. emissio. co.ts while ensuring passenger satisfactio.. The seco.d stage develo.s a real-time scheduling mo.el to.minimize additio.al o.eratio.al co.ts, penalties fo. time windo. vio.atio.s, and co.ts due to.rej.cted passengers, thereby addressing real-time demands. Additio.ally, an enhanced genetic algo.ithm based o. No.-do.inated So.ting Genetic Algo.ithm-II (NSGA-II) is designed, inco.po.ating multiple cro.so.er po.nts to.accelerate co.vergence and impro.e so.utio. efficiency. The pro.o.ed scheduling mo.el is validated using a real netwo.k in Shanghai. Results indicate that real-time scheduling can serve mo.e passengers, and impro.e vehicle utilizatio. and o.cupancy rates, with o.ly a mino. increase in to.al o.eratio.al co.ts. Co.pared to.the traditio.al NSGA-II algo.ithm, the impro.ed versio. enhances co.vergence speed by 31.7% and so.utio. speed by 4.8%. The pro.o.ed mo.el and algo.ithm o.fer bo.h theo.etical and practical guidance fo. real-wo.ld DRT scheduling. © 2024 The Autho.s.

关键词： artificial intelligence applicatio.s Demand respo.sive transit genetic algo.ithm muti-o.j.ctive o.timizatio.

A Facial Expressio. Reco.nitio. Metho. Integrating Uncertainty Estimatio. and Active Learning

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Co.puters, Materials and Co.tinua 2024年第1期81卷 533-548页

作者： Wang Y. Zhang j. Sun R. Scho.l o. Co.puter Science and Engineering Chongqing University of Technology Chongqing 400054 China Data Space Research Institute o. Hefei Co.prehensive Natio.al Science Center Hefei 230088 China

The effectiveness o. facial expressio. reco.nitio. (FER) algo.ithms hinges o. the mo.el’s quality and the availability o. a substantial amo.nt o. labeled expressio. data. Ho.ever, labeling large datasets demands significant human, time, and financial reso.rces. Altho.gh active learning metho.s have mitigated the dependency o. extensive labeled data, a co.d-start pro.lem persists in small to.medium-sized expressio. reco.nitio. datasets. This issue arises because the initial labeled data o.ten fails to.represent the full spectrum o. facial expressio. characteristics. This paper intro.uces an active learning appro.ch that integrates uncertainty estimatio., aiming to.impro.e the precisio. o. facial expressio. reco.nitio. regardless o. dataset scale variatio.s. The metho. is divided into.two.primary phases. First, the mo.el undergo.s self-supervised pre-training using co.trastive learning and uncertainty estimatio. to.bo.ster its feature extractio. capabilities. Seco.d, the mo.el is fine-tuned using the prio. kno.ledge o.tained fro. the pre-training phase to.significantly impro.e reco.nitio. accuracy. In the pre-training phase, the mo.el emplo.s co.trastive learning to.extract fundamental feature representatio.s fro. the co.plete unlabeled dataset. These features are then weighted thro.gh a self-attentio. mechanism with rank regularizatio.. Subsequently, data fro. the lo.-weighted set is relabeled to.further refine the mo.el’s feature extractio. ability. The pre-trained mo.el is then utilized in active learning to.select and label info.matio.-rich samples mo.e efficiently. Experimental results demo.strate that the pro.o.ed metho. significantly o.tperfo.ms existing appro.ches, achieving an impro.ement in reco.nitio. accuracy o. 5.09% and 3.82% o.er the best existing active learning metho.s, Margin, and Least Co.fidence metho.s, respectively, and a 1.61% impro.ement co.pared to.the co.ventio.al segmented active learning metho.. © 2024 The Autho.s.

关键词： active learning Expressio. reco.nitio. self-supervised learning uncertainty estimatio.

Helico.acter pylo.i infectio. may result in po.r gastric cleanliness in magnetically co.tro.led capsule gastro.co.y examinatio.: A single-center retro.pective study

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Laparo.co.ic, Endo.co.ic, and Ro.o.ic Surgery 2024年第4期7卷 147-154页

作者： Xia j. Fang j. Chen L. Meng Y. Su L. Department o. General Practice Sir Run Run Shaw Hospital Zhejiang University School of Medicine Hangzhou 310016 China

o.j.ctive: Magnetically co.tro.led capsule gastro.co.y (MCCG) is an effective metho. fo. screening gastric diseases; ho.ever, its perfo.mance may be affected by gastric cleanliness. We aimed to.explo.e the co.relatio. between Helico.acter pylo.i infectio. and the degree o. gastric cleanliness in the MCCG. Metho.s: This retro.pective study enro.led 297 participants fro. o.to.er 2020 to.April 2024 at Sir Run Run Shaw Ho.pital, Zhej.ang University Scho.l o. Medicine. Participant characteristics, MCCG examinatio. results, and (13) C-urea breath test (C13-UBT) results were co.lected. The gastric cleanliness in MCCG examinatio.s was assessed using a gastric cleanliness sco.e. Binary lo.istic regressio. was used to.analyze the relatio.ships amo.g participant characteristics, H. pylo.i infectio., and gastric cleanliness. Chi-square tests and Fisher's exact tests were used to.analyze the relatio.ships amo.g gastric lesio.s, H. pylo.i infectio., and gastric cleanliness. Results: Amo.g the participants, 24.2% had H. pylo.i infectio., and 17.5% had po.r gastric cleanliness. Hypertensio. (o.ds ratio.[o.]: 2.63; 95% co.fidence interval [CI]: 1.36–5.09; p = 0.004) was asso.iated with a greater likeliho.d o. H. pylo.i infectio.. H. pylo.i infectio. (o.: 3.76; 95% CI: 1.99–7.09; p o. fo. po.r gastric cleanliness in the MCCG. A significant disparity was no.ed in the prevalence o. fo.al ero.io.s (p o.itive gastric lesio.s (p = 0.027) between the 2 gro.ps with and witho.t H. pylo.i infectio.. The pro.o.tio. o. po.itive gastric lesio.s was no. significantly different between the go.d gastric cleanliness gro.p and the po.r gastric cleanliness gro.p (25.7% vs. 21.2%; p = 0.490). Co.clusio.: The findings o. this study revealed that H. pylo.i infectio. was asso.iated with hypertensio.. H. pylo.i infectio. may lead to.po.r gastric cleanliness. Institutio.s are advised to.perfo.m C13-UBT befo.e MCCG, and participa

关键词： C-urea breath test Gastric cleanliness Helico.acter pylo.i Hypertensio. Magnetically co.tro.led capsule gastro.co.y